/*
 * @(#)GaeaDB.java	1.0 Apr 27, 2008
 *
 *	The MIT License
 *
 *	Copyright (c) 2008 Malachi de AElfweald <malachid@gmail.com>
 *
 *	Permission is hereby granted, free of charge, to any person obtaining a copy
 *	of this software and associated documentation files (the "Software"), to deal
 *	in the Software without restriction, including without limitation the rights
 *	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *	copies of the Software, and to permit persons to whom the Software is
 *	furnished to do so, subject to the following conditions:
 *
 *	The above copyright notice and this permission notice shall be included in
 *	all copies or substantial portions of the Software.
 *
 *	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *	THE SOFTWARE.
 */
package org.eoti.gaea.db;

import org.eoti.mimir.MimirDB;
import org.eoti.mimir.MimirException;
import org.eoti.mimir.MimirRegistry;
import org.eoti.mimir.SchemeNotFoundException;
import org.eoti.spec.mimirdb.v1.DBMapping;

import java.io.Serializable;
import java.math.BigInteger;
import java.util.Comparator;

public abstract class GaeaDB<DATA> extends MimirDB<DATA,BigInteger>
{
	protected static IDComparator idComparator = new IDComparator();

	public GaeaDB(MimirRegistry registry, DBMapping dbMapping)
			throws SchemeNotFoundException, MimirException
	{
		super(registry, dbMapping);
	}

	public BigInteger createID(String id)
	{
		return new BigInteger(id);
	}

	protected BigInteger getNextID(BigInteger last)
	{
		if(last == null)
			return BigInteger.ONE;

		return last.add(BigInteger.ONE);
	}

	protected Comparator<BigInteger> getIDComparator()
	{
		return idComparator;
	}

	static class IDComparator
	implements Comparator<BigInteger>, Serializable
	{
		public int compare(BigInteger bi1, BigInteger bi2)
		{
			return bi1.compareTo(bi2);
		}
	}
}
